CN207623292U - A kind of Thermal desorption module of equilibrium air pressure - Google Patents
A kind of Thermal desorption module of equilibrium air pressure Download PDFInfo
- Publication number
- CN207623292U CN207623292U CN201721695047.XU CN201721695047U CN207623292U CN 207623292 U CN207623292 U CN 207623292U CN 201721695047 U CN201721695047 U CN 201721695047U CN 207623292 U CN207623292 U CN 207623292U
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- China
- Prior art keywords
- shell
- air
- adsorption tube
- thermal desorption
- pressure
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- 238000003795 desorption Methods 0.000 title claims abstract description 12
- 238000001179 sorption measurement Methods 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
A kind of Thermal desorption module of equilibrium air pressure, including shell, it is characterised in that：Shell horizontal direction both sides are respectively equipped with air inlet and air outlet；Adsorption tube is equipped in the shell；Air inlet position is equipped with air compressor in the shell；Air outlet couples adsorption tube in the shell；The adsorption tube other end is coupled by electromagnetic valve with air compressor；Inside the air compressor pressure monitor is equipped with adsorption tube coupled position；The pressure monitor connection has controller；The switch of the controller control electromagnetic valve.
Description
Technical field
The present invention relates to Thermal desorption technologies, and in particular to a kind of Thermal desorption module of equilibrium air pressure.
Background technology
Because the VOCs concentration in surrounding air is relatively low, the gas chromatograph of conventional type cannot be satisfied the detection need of benzene homologues
It asks.
Thermal desorption module is increased in our company surrounding air VOCs detecting systems, in a manner of being enriched with and concentrate, increases target
The concentration of substance is detected, the detection of gas chromatography is convenient for.Pyrolysis analyzer uses having for the glass tube capture filled with adsorbent
Machine compound, is then introduced into gas chromatograph, and by gas-chromatography, these organic compounds are detached and surveyed
It is fixed.It is sampled using large volume and compound is retained in the adsorption tube sampling pipe of high power capacity, then heating is resolved to gas-chromatography
In instrument capillary column.In sampling process, due to being that large volume gas is pressed into chromatographic column, air pressure is larger and and unstable.
And chromatographic testing conditions are extremely harsh, different air pressures can cause final analysis result to have very big difference.
Invention content
The technical problem to be solved by the present invention for the above-mentioned state of the art is to provide it is a kind of can be with the heat of equilibrium air pressure
Parsing module.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of Thermal desorption module of equilibrium air pressure, including shell, it is characterised in that：Distinguish shell horizontal direction both sides
Equipped with air inlet and air outlet；Adsorption tube is equipped in the shell；Air inlet position is equipped with air compressor in the shell；Institute
It states air outlet in shell and couples adsorption tube；The adsorption tube other end is coupled by electromagnetic valve with air compressor；The sky
Inside air compressor pressure monitor is equipped with adsorption tube coupled position；The pressure monitor connection has controller；The control
The switch of device control electromagnetic valve processed.
Further, it is wound with empire silk outside the adsorption tube, is heated by empire silk.
Further, empire silk both ends external power supply.
Still further, the shell is stainless steel.
The beneficial effects of the invention are as follows：Preset pressure value in the controller, air compressor compressed air, pressure monitor
Monitor pressure, and by real-time data transmission to controller, after reaching pressure value, controller opening electromagnetic valve, ensure into
The air pressure for entering adsorption tube is maintained at default value.So that the sample gas that enrichment method is good, meeting and the external world before entering chromatographic column
Air is balanced, with ensure each admission pressure as close possible to.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of Thermal desorption module of equilibrium air pressure, including shell 1, it is characterised in that：The shell 1 is horizontal
Direction both sides are respectively equipped with air inlet 5 and air outlet 6；Adsorption tube 2 is equipped in the shell 1；Air inlet 5 in the shell 1
Air compressor 4 is installed；Air outlet 6 couples adsorption tube 2 in the shell 1；2 other end of the adsorption tube passes through electromagnetic valve
3 couple with air compressor 4；4 inside of the air compressor is equipped with pressure monitor 7 with 2 coupled position of adsorption tube；The pressure
The connection of power monitor 7 has controller；The switch of the controller control electromagnetic valve 3.
Further, it is wound with empire silk outside the adsorption tube 2, is heated by empire silk.
Further, empire silk both ends external power supply.
Still further, the shell 1 is stainless steel.
The beneficial effects of the invention are as follows：Preset pressure value in the controller, air compressor compressed air, pressure monitor
Monitor pressure, and by real-time data transmission to controller, after reaching pressure value, controller opening electromagnetic valve, ensure into
The air pressure for entering adsorption tube is maintained at default value.So that the sample gas that enrichment method is good, meeting and the external world before entering chromatographic column
Air is balanced, with ensure each admission pressure as close possible to.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Range.
Claims (4)
1. a kind of Thermal desorption module of equilibrium air pressure, including shell（1）, it is characterised in that：The shell（1）Horizontal direction both sides
It is respectively equipped with air inlet（5）And air outlet（6）；The shell（1）It is interior to be equipped with adsorption tube（2）；The shell（1）Interior air inlet
（5）Position is equipped with air compressor（4）；The shell（1）Interior air outlet（6）Couple adsorption tube（2）；The adsorption tube（2）Separately
One end passes through electromagnetic valve（3）With air compressor（4）Connection；The air compressor（4）Internal and adsorption tube（2）Couple position
Pressure monitor is installed（7）；The pressure monitor（7）Connection has controller；The controller controls electromagnetic valve（3）'s
Switch.
2. a kind of Thermal desorption module of equilibrium air pressure as described in claim 1, it is characterised in that：The adsorption tube（2）It twines outside
It is wound with empire silk, is heated by empire silk.
3. a kind of Thermal desorption module of equilibrium air pressure as claimed in claim 2, it is characterised in that：The empire silk both ends are external
Power supply.
4. a kind of Thermal desorption module of equilibrium air pressure as described in claim 1, it is characterised in that：The shell（1）It is stainless
Steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695047.XU CN207623292U (en) | 2017-12-08 | 2017-12-08 | A kind of Thermal desorption module of equilibrium air pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695047.XU CN207623292U (en) | 2017-12-08 | 2017-12-08 | A kind of Thermal desorption module of equilibrium air pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207623292U true CN207623292U (en) | 2018-07-17 |
Family
ID=62821992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721695047.XU Expired - Fee Related CN207623292U (en) | 2017-12-08 | 2017-12-08 | A kind of Thermal desorption module of equilibrium air pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207623292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900844A (en) * | 2017-12-08 | 2019-06-18 | 南京天成环境科技工程有限公司 | A kind of Thermal desorption module of equilibrium air pressure |
-
2017
- 2017-12-08 CN CN201721695047.XU patent/CN207623292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900844A (en) * | 2017-12-08 | 2019-06-18 | 南京天成环境科技工程有限公司 | A kind of Thermal desorption module of equilibrium air pressure |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20201208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |